#include <stdio.h>
#include "add.h"
#include "sub.h"
int main(void)
{
    int a = 15,b = 12;
    int i=10,j=5;
    printf("int a+b IS:%d\n",add_int(a,b));
    printf("int i-j IS:%d\n",sub_int(i,j));
    return 0;
}
